/*
 *  Licensed to the Apache Software Foundation (ASF) under one or more
 *  contributor license agreements.  See the NOTICE file distributed with
 *  this work for additional information regarding copyright ownership.
 *  The ASF licenses this file to You under the Apache License, Version 2.0
 *  (the "License"); you may not use this file except in compliance with
 *  the License.  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 */
package org.apache.coyote;

import java.io.IOException;

import org.apache.tomcat.util.net.ApplicationBufferHandler;

This class is only for internal use in the protocol implementation. All reading from Tomcat (or adapter) should be done using Request.doRead().
/** * This class is only for internal use in the protocol implementation. All * reading from Tomcat (or adapter) should be done using Request.doRead(). */
public interface InputBuffer {
Read from the input stream into the ByteBuffer provided by the ApplicationBufferHandler. IMPORTANT: the current model assumes that the protocol will 'own' the ByteBuffer and return a pointer to it.
Params:
  • handler – ApplicationBufferHandler that provides the buffer to read data into.
Throws:
  • IOException – If an I/O error occurs reading from the input stream
Returns:The number of bytes that have been added to the buffer or -1 for end of stream
/** * Read from the input stream into the ByteBuffer provided by the * ApplicationBufferHandler. * IMPORTANT: the current model assumes that the protocol will 'own' the * ByteBuffer and return a pointer to it. * * @param handler ApplicationBufferHandler that provides the buffer to read * data into. * * @return The number of bytes that have been added to the buffer or -1 for * end of stream * * @throws IOException If an I/O error occurs reading from the input stream */
public int doRead(ApplicationBufferHandler handler) throws IOException;
Obtain an estimate of the number of bytes that can be read without blocking. Typically, this will be the number of available bytes known to be buffered.
Returns:The number of bytes that can be read without blocking
/** * Obtain an estimate of the number of bytes that can be read without * blocking. Typically, this will be the number of available bytes known to * be buffered. * * @return The number of bytes that can be read without blocking */
public int available(); }